The boy was rescued an hour after police were first alerted.
He was by that time 1km from the burning boat, swimming without a lifejacket.
Police’s initial statement on Monday said he was lucky to survive.
The boy was fine, police said.
RNZ made inquiries after becoming aware of questions being asked locally about how long it took the chopper to get there.
Police released timestamps today showing they confirmed the boy was missing at 7.19pm.
More to come.